Jawbone UP24 - Fitness Tracker / Sleep / Activity Monitor - Bluetooth Enabled. UP24 is compatible with many phones equipped with Bluetooth 4.0 and running Android 4.3 (Jelly Bean) or later, and iOS 6.0 or later. Track Activity including steps, distance, calories burned, active vs. idle time Log what you eat and drink and track nutritional info by taking a photo, scanning a barcode, or searching the UP app database Smart Alarm and Power Nap features wake you at the time that leaves you feeling refreshed Small = 5.5 to 6 inches/14 to 15.5 cm; Medium = 6 to 7 inches/15.5 to 18 cm; Large = 7 to 8 inches/18 to 20 cm. Combining the Jawbone UP24 wristband and the UP app on your iPhone, iPod touch, or iPad, the UP system helps you understand your sleep, eating, and movement patterns so you can make better life choices. The UP24 band syncs to the app via Bluetooth wireless so you can see your movement and sleep details. The app also provides insights, celebrates milestones, and challenges you to do more each day. Sleep better Small and comfortable to wear all day and night, UP24 tracks hours slept, time to fall asleep, how many times you woke up, and more. Analyze your sleep patterns to understand what you can do to have a more restful night. And start each day right with the Smart Alarm, which gently wakes you up at the perfect moment in your sleep cycle. Know how active you are Get a full record of your day's activity-steps, distance, calories burned, and time spent active versus idle. See how every action contributes to reaching your goals. In-the-moment reminders help keep you moving to meet daily goals Log your food and drink Take a photo of your food, scan a barcode, browse the image gallery, or search the ingredient database to record what you eat and drink. The UP app keeps track of your calories, fats, carbohydrates, protein, sugar, fiber, and sodium.
